Proton distribution radii of ${}^{12-19}$C illuminate features of neutron halos

Abstract

Proton radii of ${}^{12-19}$C densities derived from first accurate charge changing cross section measurements at 900$A$ MeV with a carbon target are reported. A thick neutron surface evolves from $\sim$ 0.5 fm in ${}^{15}$C to $\sim$ 1 fm in ${}^{19}$C. The halo radius in ${}^{19}$C is found to be 6.4$\pm$0.7 fm as large as ${}^{11}$Li. Ab initio calculations based on chiral nucleon-nucleon and three-nucleon forces reproduce well the radii.

arXiv comment5 pages, 4 figures, accepted for publication in Phys. Rev. Lett

References in corpus (17)

• Accurate Charge-Dependent Nucleon-Nucleon Potential at Fourth Order of Chiral Perturbation Theory
• The Nuclear Equation of State and Neutron Star Masses
• Improved nuclear matter calculations from chiral low-momentum interactions
• Coupled-cluster computations of atomic nuclei
• Accurate nuclear radii and binding energies from a chiral interaction
• Similarity Renormalization Group for Nucleon-Nucleon Interactions
• Unexpectedly large charge radii of neutron-rich calcium isotopes
• Charge, neutron, and weak size of the atomic nucleus
• An optimized chiral nucleon-nucleon interaction at next-to-next-to-leading order
• Nuclear Charge Radii of Be-7,9,10 and the one-neutron halo nucleus Be-11
• Ab-initio coupled-cluster effective interactions for the shell model: Application to neutron-rich oxygen and carbon isotopes
• Systematic analysis of reaction cross sections of carbon isotopes
• ${}^{22}$C: $S$-Wave Two-Neutron Halo
• Coupled-cluster calculations for valence systems around O-16
• Open $sd$-shell nuclei from first principles
• Proton radii of Be, B, and C isotopes
• Sequence randomness and polymer collapse transitions

Cited by in corpus (47)

• Evolution of shell structure in exotic nuclei
• Novel chiral Hamiltonian and observables in light and medium-mass nuclei
• Effective field theory description of halo nuclei
• A two-neutron halo is unveiled in ${}^{29}$F
• Angular-momentum projection in coupled-cluster theory: structure of ${}^{34}$Mg
• Study of ground state properties of carbon isotopes with deformed relativistic Hartree-Bogoliubov theory in continuum
• Neutron skin and signature of the $N$ = 14 shell gap found from measured proton radii of ${}^{17-22}$N
• Peeling off neutron skins from neutron-rich nuclei: Constraints on the symmetry energy from neutron-removal cross sections
• Ab initio Gamow in-medium similarity renormalization group with resonance and continuum
• Charge-changing-cross-section measurements of ${}^{12-16}$C at around $45A$ MeV and development of a Glauber model for incident energies $10A-2100A$ MeV
• Evidence for Z=6 `magic number' in neutron-rich carbon isotopes
• Impacts of the New Carbon Fusion Cross Sections on Type Ia Supernovae
• The nuclear force imprints revealed on the elastic scattering of protons with ${}^{10}$C
• Isospin-dependence of the charge-changing cross-section shaped by the charged-particle evaporation process
• Nuclear matter distributions in the neutron-rich carbon isotopes ${}^{14-17}$C from intermediate-energy proton elastic scattering in inverse kinematics
• Neutron skins as laboratory constraints on properties of neutron stars and on what we can learn from heavy ion fragmentation reactions
• Constraining equation of state of nuclear matter by charge-changing cross section measurements of mirror nuclei
• Deformed in-medium similarity renormalization group
• Charge-changing cross sections for ${}^{42\text{–}51}$Ca and effect of charged-particle evaporation induced by neutron removal reaction
• A new approach for deducing rms proton radii from charge-changing reactions of neutron-rich nuclei and the reaction-target dependence
• $g$-matrix folding-model approach to reaction cross sections for scattering of Ca isotopes on a C target
• Neutron-skin thickness determines the surface tension of a compressible nuclear droplet
• Ab initio no-core shell model description of ${}^{10-14}$C isotopes
• Explicit inclusion of spin-orbit contribution in THSR wave function
• One-neutron halo structure of ${}^{29}$Ne
• Accuracy of the mean-field theory in describing ground-state properties of light nuclei
• Role of triaxiality in deformed halo nuclei
• Charge-changing cross section measurements of 300 MeV/nucleon ${}^{28}$Si on carbon and data analysis
• Probing the quadrupole transition strength of 15C via deuteron inelastic scattering
• Simultaneous Extraction of the Weak Radius and the Weak Mixing Angle from Parity-Violating Electron Scattering on ${}^{12}\mathrm{C}$
• Ab initio no-core shell model study of neutron-rich ${}^{18,19,20}$C isotopes
• Triaxial relativistic Hartree-Bogoliubov theory in continuum for exotic nuclei
• Halo structure of ${}^{17}$C
• Total reaction cross section on a deuteron target and the eclipse effect of the constituent neutron and proton
• Ab initio study of the radii of oxygen isotopes
• Charge-changing cross section and interaction cross sections for 4$\le$Z$\le$9 isotopes
• There is no 'velocity kick' memory in electrodynamics
• Extension of the ratio method to proton-rich nuclei
• Description of Nuclei with Magic Number Z(N) = 6
• Deformation, halo, and bubble structure: A paradigm shift of exotic phenomena in light to medium mass nuclei
• Investigating nuclear density profiles to reveal particle-hole configurations in the island of inversion
• Theoretical investigation of charge-changing cross section and interaction cross section for Be, B, C, N, O, and F isotopes on ${}^{12}$C at 200-1050 MeV/nucleon
• Neutron radii and neutron skin of neutron-rich nuclei deduced from proton-nucleus total reaction cross sections
• Resonances of unbound quantum many-body systems of nuclei
• Role of nuclear and electromagnetic fragmentation in the charge-changing reactions of 18O on carbon and lead targets at around 370 MeV/nucleon
• Study of the Isomeric State in ${}^{16}$N Using the ${}^{16}$N${}^{g,m}$($d$,${}^3$He) Reaction
• On energy-dependent scaling factor for the charge-changing cross sections of light elements